<template>
  <div class="box">
    sona
    <button @click="fn" />
  </div>
</template>

<script>
export default {
  methods: {
    fn() {
      this.$bus.$emit('事件名', 5656123)
    }
  }
}
</script>

<style lang="scss" scoped>
.box {
  width: 200px;
  height: 300px;
  border: 1px solid red;
}
</style>
